ProDoc vs VibMeasure

The only PDF app that listens, speaks, and converts — plus every editing tool you'd expect. ProDoc turns your device into a complete document studio. Scan paperwork in seconds, sign contracts on the spot, merge and split files, convert Word to PDF — and do things other PDF apps can't: transcribe audio recordings into clean PDF documents, or have any PDF read aloud while you commute. WHY PRODOC • Fast and lightweight — under 6 MB, opens instantly • No account required, your files stay on your device • One app replaces five: scanner, editor, converter, signer, reader SCAN & DIGITIZE • Scan documents with automatic edge detection • Reorder, edit, and delete scanned pages before export • Turn photos and images into organized PDFs EDIT & SIGN • Add text, highlights, shapes, and freehand drawing • Create and place your signature in seconds • Fill out forms without printing anything CONVERT ANYTHING • Word to PDF and PDF to Word • Audio recordings to searchable PDF transcripts • Export documents as spoken audio to listen later ORGANIZE • Merge multiple PDFs into one file • Split large PDFs into smaller documents • Reorder pages with drag and drop LISTEN TO YOUR DOCUMENTS • Read Aloud mode speaks any PDF, hands-free • Perfect for studying, commuting, and accessibility Download ProDoc take control of your documents today.

Floor Vibration Velocity Analysis is a tool that uses the iPhone's built-in sensors for vibration measurement and spectrum analysis. It's suitable for initial on-site observation, floor vibration trend checking, and daily measurement record organization. The app automatically analyzes Z-axis acceleration data after measurement, providing time-domain waveforms, dominant frequency, frequency band dominant frequency, fixed bandwidth velocity spectrum, 1/3 Octave velocity RMS, and overall velocity RMS, helping users quickly understand vibration characteristics. Measurement results can also be exported as a CSV file for easy subsequent organization and comparison. Main Functions: Displays real-time Z-axis acceleration values Customizes sampling rate and high-pass cutoff frequency Automatically performs spectrum analysis after recording Displays full-frequency peak and dominant frequency within a specified frequency band Displays overall velocity RMS Displays fixed bandwidth velocity spectrum Displays 1/3 Octave velocity RMS Exports measurement data as a CSV file Suitable Use Cases: Initial measurement of floor micro-vibration Observation of vibration during indoor equipment operation Comparison of repeated measurements at the same location Quick on-site inspection and record organization